MX356315B - Codec method, device and system. - Google Patents

Codec method, device and system.

Info

Publication number
MX356315B
MX356315B MX2016015526A MX2016015526A MX356315B MX 356315 B MX356315 B MX 356315B MX 2016015526 A MX2016015526 A MX 2016015526A MX 2016015526 A MX2016015526 A MX 2016015526A MX 356315 B MX356315 B MX 356315B
Authority
MX
Mexico
Prior art keywords
signal
emphasis
audio input
full band
decoding end
Prior art date
Application number
MX2016015526A
Other languages
Spanish (es)
Other versions
MX2016015526A (en
Inventor
Wang Bin
Liu Zexin
Miao Lei
Original Assignee
Huawei Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=54936715&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX356315(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2016015526A publication Critical patent/MX2016015526A/en
Publication of MX356315B publication Critical patent/MX356315B/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/003—Changing voice quality, e.g. pitch or formants
    • G10L21/007—Changing voice quality, e.g. pitch or formants characterised by the process used

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Provided in an embodiment of the present invention are a codec method, device and system, the coding method comprising: coding a full band signal de-emphasis-processed using a de-emphasis parameter determined according a characteristic factor of an audio input signal, and sending the de-emphasis-processed full band signal to a decoding end, such that the decoding end conducts corresponding de-emphasis decoding on the full band signal according to the characteristic factor of the audio input signal, restoring the audio input signal. The method solves the problem in prior art of a high chance of signal distortion in an audio signal restored at a decoding end, achieves self-adaptive de-emphasis processing of the full band signal according to the characteristic factor of the audio signal, and enhances coding performance, so that the audio input signal restored at the decoding end has higher fidelity and is closer to an original signal.
MX2016015526A 2014-06-26 2015-03-20 Codec method, device and system. MX356315B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410294752.3A CN105225671B (en) 2014-06-26 2014-06-26 Decoding method, Apparatus and system
PCT/CN2015/074704 WO2015196835A1 (en) 2014-06-26 2015-03-20 Codec method, device and system

Publications (2)

Publication Number Publication Date
MX2016015526A MX2016015526A (en) 2017-04-25
MX356315B true MX356315B (en) 2018-05-23

Family

ID=54936715

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016015526A MX356315B (en) 2014-06-26 2015-03-20 Codec method, device and system.

Country Status (15)

Country Link
US (3) US9779747B2 (en)
EP (2) EP3637416A1 (en)
JP (1) JP6496328B2 (en)
KR (1) KR101906522B1 (en)
CN (2) CN106228991B (en)
AU (1) AU2015281686B2 (en)
BR (1) BR112016026440B8 (en)
CA (1) CA2948410C (en)
DE (2) DE202015009916U1 (en)
HK (1) HK1219802A1 (en)
MX (1) MX356315B (en)
MY (1) MY173513A (en)
RU (1) RU2644078C1 (en)
SG (1) SG11201609523UA (en)
WO (1) WO2015196835A1 (en)

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WO2014118156A1 (en) * 2013-01-29 2014-08-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for synthesizing an audio signal, decoder, encoder, system and computer program
CN105978540B (en) * 2016-05-26 2018-09-18 英特格灵芯片(天津)有限公司 A kind of postemphasis processing circuit and its method of continuous time signal
CN106601267B (en) * 2016-11-30 2019-12-06 武汉船舶通信研究所 Voice enhancement method based on ultrashort wave FM modulation
CN112885364B (en) * 2021-01-21 2023-10-13 维沃移动通信有限公司 Audio encoding method and decoding method, audio encoding device and decoding device

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Also Published As

Publication number Publication date
EP3133600B1 (en) 2019-08-28
KR20160145799A (en) 2016-12-20
US20170110137A1 (en) 2017-04-20
BR112016026440B8 (en) 2023-03-07
SG11201609523UA (en) 2016-12-29
JP6496328B2 (en) 2019-04-03
CN105225671B (en) 2016-10-26
DE202015009916U1 (en) 2021-08-04
US10339945B2 (en) 2019-07-02
EP3637416A1 (en) 2020-04-15
AU2015281686A1 (en) 2016-12-01
WO2015196835A1 (en) 2015-12-30
BR112016026440B1 (en) 2022-09-20
CA2948410A1 (en) 2015-12-30
KR101906522B1 (en) 2018-10-10
RU2644078C1 (en) 2018-02-07
AU2015281686B2 (en) 2018-02-01
MX2016015526A (en) 2017-04-25
DE202015009942U1 (en) 2021-10-01
MY173513A (en) 2020-01-30
JP2017525992A (en) 2017-09-07
CN106228991B (en) 2019-08-20
US10614822B2 (en) 2020-04-07
EP3133600A4 (en) 2017-05-10
CN105225671A (en) 2016-01-06
CA2948410C (en) 2018-09-04
BR112016026440A2 (en) 2017-08-15
EP3133600A1 (en) 2017-02-22
US9779747B2 (en) 2017-10-03
US20190333528A1 (en) 2019-10-31
US20170372715A1 (en) 2017-12-28
HK1219802A1 (en) 2017-04-13
CN106228991A (en) 2016-12-14

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